Inspire Medical Systems, Inc.
INSP- Exchange
- NYSE
- Industry
- Surgical & Medical Instruments & Apparatus
- SEC CIK
- 0001609550
In the last 90 days, Inspire Medical Systems, Inc. insiders filed 0 open-market purchases and 1 sale; 275 institutions reported holding it in 13F filings for Q2 2026, worth $1.65B in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in Inspire Medical Systems, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 325
- −27 vs. Q2 2025
- Shares held
- 31.1M
- −2.40M (−7.2%) vs. Q2 2025
- Total value
- $2.31B
- −$2.04B (−46.9%) vs. Q2 2025
- New holders
- 66
- 97 more added
- Sold out
- 93
- 131 more reduced
4 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting INSP on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 275 | $1.65B |
| Q1 2026 | 301 | $1.80B |
| Q4 2025 | 343 | $3.12B |
| Q3 2025 | 325 | $2.31B |
| Q2 2025 | 356 | $4.39B |
| Q1 2025 | 363 | $5.46B |
| Q4 2024 | 357 | $6.20B |
| Q3 2024 | 347 | $7.03B |
| Q2 2024 | 325 | $4.23B |
| Q1 2024 | 327 | $6.83B |
| Q4 2023 | 343 | $6.31B |
| Q3 2023 | 365 | $5.65B |
| Q2 2023 | 407 | $9.11B |
| Q1 2023 | 374 | $6.68B |
| Q4 2022 | 340 | $7.11B |
| Q3 2022 | 301 | $5.01B |
| Q2 2022 | 287 | $5.01B |
| Q1 2022 | 299 | $6.92B |
| Q4 2021 | 289 | $5.95B |
| Q3 2021 | 254 | $5.91B |
| Q2 2021 | 248 | $4.83B |
| Q1 2021 | 251 | $5.21B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Inspire Medical Systems, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Franklin Resources Inc | 297,245 | $22.1M | 0.01% | +68,681+30.0% | Added |
| Dimensional Fund Advisors LP | 343,718 | $25.5M | 0.01% | −1,149−0.3% | Reduced |
| Millennium Management LLC | 356,808 | $26.5M | 0.02% | +356,808 | New |
| D. E. Shaw & Co., Inc. | 358,857 | $26.6M | 0.02% | +344,635+2,423.3% | Added |
| Standard Life Aberdeen plc | 396,340 | $30.0M | 0.05% | +153,238+63.0% | Added |
| Champlain Investment Partners, LLC | 407,059 | $30.2M | 0.23% | −5,047−1.2% | Reduced |
| Morgan Stanley | 450,641 | $33.4M | 0.00% | +147,769+48.8% | Added |
| UBS Group AG | 467,736 | $34.7M | 0.01% | +37,042+8.6% | Added |
| Geode Capital Management, LLC | 504,987 | $37.5M | 0.00% | −7,849−1.5% | Reduced |
| BNP Paribas Arbitrage, SA | 522,180 | $38.7M | 0.03% | +462,412+773.7% | Added |
| Artisan Partners Limited Partnership | 526,242 | $39.0M | 0.06% | +163,916+45.2% | Added |
| Balyasny Asset Management LLC | 614,359 | $45.6M | 0.09% | +614,359 | New |
| Janus Henderson Group PLC | 667,078 | $49.5M | 0.02% | +26,155+4.1% | Added |
| Soleus Capital Management, L.P. | 728,188 | $54.0M | 2.89% | +619,188+568.1% | Added |
| FMR LLC | 749,312 | $55.6M | 0.00% | −1,536,430−67.2% | Reduced |
| UBS Asset Management Americas Inc | 833,599 | $61.9M | 0.01% | +225,291+37.0% | Added |
| Braidwell LP | 883,747 | $65.6M | 1.95% | +361,337+69.2% | Added |
| State Street Corp | 979,309 | $72.7M | 0.00% | −51,593−5.0% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 1,047,694 | $77.7M | 1.19% | +907,694+648.4% | Added |
| Baillie Gifford & Co | 1,084,350 | $80.5M | 0.06% | −29,538−2.7% | Reduced |
| William Blair Investment Management, LLC | 1,297,573 | $96.3M | 0.25% | +528,404+68.7% | Added |
| Citadel Advisors LLC | 1,748,409 | $129.7M | 0.10% | +1,739,734+20,054.6% | Added |
| Vanguard Group Inc | 3,000,087 | $222.6M | 0.00% | −203,504−6.4% | Reduced |
| BlackRock, Inc. | 3,547,195 | $263.2M | 0.00% | −326,591−8.4% | Reduced |
| T. Rowe Price Investment Management, Inc. | 4 | – | – | +4 | New |
| Dragoneer Investment Group, LLC | 0 | $0 | 0.00% | −2,354,411−100.0% | Sold out |
| TimesSquare Capital Management, LLC | 0 | $0 | 0.00% | −499,199−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −230,153−100.0% | Sold out |
| Eversept Partners, LP | 0 | $0 | 0.00% | −164,473−100.0% | Sold out |
| Tri Locum Partners LP | 0 | $0 | 0.00% | −149,244−100.0% | Sold out |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −136,950−100.0% | Sold out |
| Neuberger Berman Group LLC | 0 | $0 | 0.00% | −99,791−100.0% | Sold out |
| American Century Companies Inc | 0 | $0 | 0.00% | −56,604−100.0% | Sold out |
| Impax Asset Management Group plc | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| Jennison Associates LLC | 0 | $0 | 0.00% | −45,439−100.0% | Sold out |
| Beck Bode, LLC | 0 | $0 | 0.00% | −40,537−100.0% | Sold out |
| California Public Employees Retirement System | 0 | $0 | 0.00% | −38,537−100.0% | Sold out |
| Schroder Investment Management Group | 0 | $0 | 0.00% | −28,692−100.0% | Sold out |
| LMCG Investments, LLC | 0 | $0 | 0.00% | −25,659−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −19,554−100.0% | Sold out |
| Cetera Investment Advisers | 0 | $0 | 0.00% | −17,003−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −16,403−100.0% | Sold out |
| Oppenheimer Asset Management Inc. | 0 | $0 | 0.00% | −15,161−100.0% | Sold out |
| AXA S.A. | 0 | $0 | 0.00% | −14,109−100.0% | Sold out |
| Fieldview Capital Management, LLC | 0 | $0 | 0.00% | −14,005−100.0% | Sold out |
| Zacks Investment Management | 0 | $0 | 0.00% | −13,621−100.0% | Sold out |
| Nebula Research & Development LLC | 0 | $0 | 0.00% | −13,522−100.0% | Sold out |
| Granite Investment Partners, LLC | 0 | $0 | 0.00% | −11,785−100.0% | Sold out |
| Gilliland Jeter Wealth Management LLC | 0 | $0 | 0.00% | −11,708−100.0% | Sold out |
| Exchange Traded Concepts, LLC | 0 | $0 | 0.00% | −11,177−100.0% | Sold out |
| Clearbridge Investments, LLC | 0 | $0 | 0.00% | −11,087−100.0% | Sold out |
| Azzad Asset Management Inc | 0 | $0 | 0.00% | −10,951−100.0% | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −10,671−100.0% | Sold out |
| Sivik Global Healthcare LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Jackson Creek Investment Advisors LLC | 0 | $0 | 0.00% | −9,618−100.0% | Sold out |
| UBS Oconnor LLC | 0 | $0 | 0.00% | −9,522−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −8,462−100.0% | Sold out |
| Stifel Financial Corp | 0 | $0 | 0.00% | −7,759−100.0% | Sold out |
| Oak Associates, Ltd | 0 | $0 | 0.00% | −6,785−100.0% | Sold out |
| MML Investors Services, LLC | 0 | $0 | 0.00% | −6,665−100.0% | Sold out |
| Jupiter Asset Management Ltd | 0 | $0 | 0.00% | −5,974−100.0% | Sold out |
| Fox Hill Wealth Management | 0 | $0 | 0.00% | −5,845−100.0% | Sold out |
| Janney Montgomery Scott LLC | 0 | $0 | 0.00% | −5,316−100.0% | Sold out |
| First Trust Advisors LP | 0 | $0 | 0.00% | −5,210−100.0% | Sold out |
| Lisanti Capital Growth, LLC | 0 | $0 | 0.00% | −4,810−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −4,463−100.0% | Sold out |
| Gibbs Wealth Management | 0 | $0 | 0.00% | −4,070−100.0% | Sold out |
| Unique Wealth Strategies, LLC | 0 | $0 | 0.00% | −3,735−100.0% | Sold out |
| Toroso Investments, LLC | 0 | $0 | 0.00% | −3,630−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −3,534−100.0% | Sold out |
| Mariner, LLC | 0 | $0 | 0.00% | −3,506−100.0% | Sold out |
| Aviva PLC | 0 | $0 | 0.00% | −3,396−100.0% | Sold out |
| Hodges Capital Management Inc. | 0 | $0 | 0.00% | −3,000−100.0% | Sold out |
| Atria Investments LLC | 0 | $0 | 0.00% | −2,948−100.0% | Sold out |
| Entropy Technologies, LP | 0 | $0 | 0.00% | −2,800−100.0% | Sold out |
| Guggenheim Capital LLC | 0 | $0 | 0.00% | −2,798−100.0% | Sold out |
| HighTower Advisors, LLC | 0 | $0 | 0.00% | −2,567−100.0% | Sold out |
| JustInvest LLC | 0 | $0 | 0.00% | −2,360−100.0% | Sold out |
| Qsemble Capital Management, LP | 0 | $0 | 0.00% | −2,353−100.0% | Sold out |
| 111 Capital | 0 | $0 | 0.00% | −2,309−100.0% | Sold out |
| Crossmark Global Holdings, Inc. | 0 | $0 | 0.00% | −2,253−100.0% | Sold out |
| Cerity Partners LLC | 0 | $0 | 0.00% | −2,243−100.0% | Sold out |
| Lebenthal Global Advisors, LLC | 0 | $0 | 0.00% | −2,240−100.0% | Sold out |
| TownSquare Capital, LLC | 0 | $0 | 0.00% | −2,225−100.0% | Sold out |
| Pathstone Holdings, LLC | 0 | $0 | 0.00% | −2,137−100.0% | Sold out |
| DRW Securities, LLC | 0 | $0 | 0.00% | −1,984−100.0% | Sold out |
| Portside Wealth Group, LLC | 0 | $0 | 0.00% | −1,934−100.0% | Sold out |
| Prospera Financial Services Inc | 0 | $0 | 0.00% | −1,915−100.0% | Sold out |
| RSM US Wealth Management LLC | 0 | $0 | 0.00% | −1,877−100.0% | Sold out |
| Kestra Advisory Services, LLC | 0 | $0 | 0.00% | −1,853−100.0% | Sold out |
| Allianz Asset Management GmbH | 0 | $0 | 0.00% | −1,800−100.0% | Sold out |
| Inceptionr LLC | 0 | $0 | 0.00% | −1,800−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −1,676−100.0% | Sold out |
| China Universal Asset Management Co., Ltd. | 0 | $0 | 0.00% | −1,574−100.0% | Sold out |
| Utah Retirement Systems | 0 | $0 | 0.00% | −1,552−100.0% | Sold out |
| St Germain D J Co Inc | 0 | $0 | 0.00% | −1,137−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −183−100.0% | Sold out |
| Creative Capital Management Investments LLC | 0 | $0 | 0.00% | −130−100.0% | Sold out |
| Cullen/Frost Bankers, Inc. | 0 | $0 | 0.00% | −102−100.0% | Sold out |
| Central Trust Co | 0 | $0 | 0.00% | −67−100.0% | Sold out |